222340204401257 has 2 divisors, whose sum is σ = 222340204401258. Its totient is φ = 222340204401256.

The previous prime is 222340204401199. The next prime is 222340204401311. The reversal of 222340204401257 is 752104402043222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220797488873536 + 1542715527721 = 14859256^2 + 1242061^2 .

It is a cyclic number.

It is not a de Polignac number, because 222340204401257 - 2¹² = 222340204397161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222340204401257.

It is not a weakly prime, because it can be changed into another prime (222340204701257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111170102200628 + 111170102200629.

It is an arithmetic number, because the mean of its divisors is an integer number (111170102200629).

Almost surely, 2^{222340204401257} is an apocalyptic number.

It is an amenable number.

222340204401257 is a deficient number, since it is larger than the sum of its proper divisors (1).

222340204401257 is an equidigital number, since it uses as much as digits as its factorization.

222340204401257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 222340204401257 its reverse (752104402043222), we get a palindrome (974444606444479).

The spelling of 222340204401257 in words is "two hundred twenty-two trillion, three hundred forty billion, two hundred four million, four hundred one thousand, two hundred fifty-seven".